Fixes for Vulkan

5dadaf70f9

.github/actions/vulkan/action.yml

@@ -0,0 +1,39 @@
+name: Install Vulkan SDK
+description: Downloads and installs Vulkan SDK.
+inputs:
+  vulkan-version:
+    description: 'Vulkan SDK release version (e.g. 1.2.198.1).'
+    default: '1.2.198.1'
+    required: false
+runs:
+  using: "composite"
+  steps:
+    - name: Install Vulkan SDK
+      shell: bash
+      run: |
+        export VULKAN_SDK_VER=${{ inputs.vulkan-version }}
+        echo VULKAN_SDK_VER=$VULKAN_SDK_VER >> $GITHUB_ENV
+        echo "Downloading Vulkan SDK version $VULKAN_SDK_VER"
+        case `uname -s` in
+          Linux)
+            export VULKAN_SDK_ROOT=`pwd`/../VulkanSDK
+            wget "https://sdk.lunarg.com/sdk/download/$VULKAN_SDK_VER/linux/vulkan-sdk.tar.gz" --no-verbose -O vulkan-sdk.tar.gz
+            mkdir $VULKAN_SDK_ROOT
+            tar -xf vulkan-sdk.tar.gz -C $VULKAN_SDK_ROOT
+            export VULKAN_SDK=$VULKAN_SDK_ROOT/$VULKAN_SDK_VER/x86_64
+            ;;
+          Darwin)
+            export VULKAN_SDK_ROOT=`pwd`/../VulkanSDK
+            curl -LO "https://sdk.lunarg.com/sdk/download/$VULKAN_SDK_VER/mac/vulkan-sdk.dmg"
+            hdiutil attach vulkan-sdk.dmg -mountpoint /Volumes/vulkan-sdk
+            sudo "/Volumes/vulkan-sdk/InstallVulkan.app/Contents/MacOS/InstallVulkan" --root $VULKAN_SDK_ROOT --accept-licenses --default-answer --confirm-command install
+            export VULKAN_SDK=$VULKAN_SDK_ROOT/macOS
+            ;;
+          *) # Windows
+            curl -L -o vulkan-sdk.exe https://sdk.lunarg.com/sdk/download/$VULKAN_SDK_VER/windows/VulkanSDK-$VULKAN_SDK_VER-Installer.exe
+            ./vulkan-sdk.exe --root "C:\VulkanSDK"  --accept-licenses --default-answer --confirm-command install
+            export VULKAN_SDK="C:\VulkanSDK"
+            ;;
+        esac
+        echo VULKAN_SDK=$VULKAN_SDK >> $GITHUB_ENV
+        echo "Vulkan SDK installed to $VULKAN_SDK"

.github/workflows/build_android.yml

@@ -0,0 +1,21 @@
+name: Build Android
+on: [push, pull_request]
+
+jobs:
+
+  # Game
+  game-windows:
+    name: Game (Android, Release ARM64)
+    runs-on: "windows-2019"
+    steps:
+    - name: Checkout repo
+      uses: actions/checkout@v2
+    - name: Setup Vulkan
+      uses: ./.github/actions/vulkan
+    - name: Checkout LFS
+      run: |
+        git lfs version
+        git lfs pull
+    - name: Build
+      run: |
+        .\Development\Scripts\Windows\CallBuildTool.bat -build -log -arch=ARM64 -platform=Android -configuration=Release -buildtargets=FlaxGame

.github/workflows/build_linux.yml

@@ -10,16 +10,18 @@ jobs:
     steps:
     - name: Checkout repo
       uses: actions/checkout@v2
-    - name: Checkout LFS
-      run: |
-        git lfs version
-        git lfs pull
     - name: Install dependencies
       run: |
         sudo rm -f /etc/apt/sources.list.d/*
         sudo cp -f .github/workflows/build_linux_sources.list /etc/apt/sources.list
         sudo apt-get update
         sudo apt-get install libx11-dev libxcursor-dev libxinerama-dev build-essential gettext libtool libtool-bin libpulse-dev libasound2-dev libjack-dev portaudio19-dev
+    - name: Setup Vulkan
+      uses: ./.github/actions/vulkan
+    - name: Checkout LFS
+      run: |
+        git lfs version
+        git lfs pull
     - name: Build
       run: |
         ./Development/Scripts/Linux/CallBuildTool.sh -build -log -arch=x64 -platform=Linux -configuration=Development -buildtargets=FlaxEditor
@@ -29,11 +31,13 @@ jobs:
     name: Game (Linux, Release x64)
     runs-on: "ubuntu-20.04"
     steps:
+    - name: Checkout repo
+      uses: actions/checkout@v2
     - name: Install dependencies
       run: |
         sudo apt-get install libx11-dev libxcursor-dev libxinerama-dev
-    - name: Checkout repo
-      uses: actions/checkout@v2
+    - name: Setup Vulkan
+      uses: ./.github/actions/vulkan
     - name: Checkout LFS
       run: |
         git lfs version

.github/workflows/build_mac.yml

@@ -0,0 +1,38 @@
+name: Build macOS
+on: [push, pull_request]
+
+jobs:
+
+  # Editor
+  editor-mac:
+    name: Editor (Mac, Development x64)
+    runs-on: "macos-latest"
+    steps:
+    - name: Checkout repo
+      uses: actions/checkout@v2
+    - name: Setup Vulkan
+      uses: ./.github/actions/vulkan
+    - name: Checkout LFS
+      run: |
+        git lfs version
+        git lfs pull
+    - name: Build
+      run: |
+        ./Development/Scripts/Mac/CallBuildTool.sh -build -log -arch=x64 -platform=Mac -configuration=Development -buildtargets=FlaxEditor
+
+  # Game
+  game-mac:
+    name: Game (Mac, Release x64)
+    runs-on: "macos-latest"
+    steps:
+    - name: Checkout repo
+      uses: actions/checkout@v2
+    - name: Setup Vulkan
+      uses: ./.github/actions/vulkan
+    - name: Checkout LFS
+      run: |
+        git lfs version
+        git lfs pull
+    - name: Build
+      run: |
+        ./Development/Scripts/Mac/CallBuildTool.sh -build -log -arch=x64 -platform=Mac -configuration=Release -buildtargets=FlaxGame

.github/workflows/build_windows.yml

@@ -6,10 +6,12 @@ jobs:
   # Editor
   editor-windows:
     name: Editor (Windows, Development x64)
-    runs-on: "windows-latest"
+    runs-on: "windows-2019"
     steps:
     - name: Checkout repo
       uses: actions/checkout@v2
+    - name: Setup Vulkan
+      uses: ./.github/actions/vulkan
     - name: Checkout LFS
       run: |
         git lfs version
@@ -21,10 +23,12 @@ jobs:
   # Game
   game-windows:
     name: Game (Windows, Release x64)
-    runs-on: "windows-latest"
+    runs-on: "windows-2019"
     steps:
     - name: Checkout repo
       uses: actions/checkout@v2
+    - name: Setup Vulkan
+      uses: ./.github/actions/vulkan
     - name: Checkout LFS
       run: |
         git lfs version

.github/workflows/cd.yml

@@ -9,7 +9,7 @@ jobs:
   # Windows
   package-windows-editor:
     name: Editor (Windows)
-    runs-on: "windows-latest"
+    runs-on: "windows-2019"
     steps:
     - name: Checkout repo
       uses: actions/checkout@v2
@@ -17,6 +17,8 @@ jobs:
       run: |
         git lfs version
         git lfs pull
+    - name: Setup Vulkan
+      uses: ./.github/actions/vulkan
     - name: Build
       run: |
         .\PackageEditor.bat -arch=x64 -platform=Windows -deployOutput=Output
@@ -32,7 +34,7 @@ jobs:
         path: Output/EditorDebugSymbols.zip
   package-windows-game:
     name: Game (Windows)
-    runs-on: "windows-latest"
+    runs-on: "windows-2019"
     steps:
     - name: Checkout repo
       uses: actions/checkout@v2
@@ -40,6 +42,8 @@ jobs:
       run: |
         git lfs version
         git lfs pull
+    - name: Setup Vulkan
+      uses: ./.github/actions/vulkan
     - name: Build
       run: |
         .\PackagePlatforms.bat -arch=x64 -platform=Windows -deployOutput=Output
@@ -66,6 +70,8 @@ jobs:
         sudo cp -f .github/workflows/build_linux_sources.list /etc/apt/sources.list
         sudo apt-get update
         sudo apt-get install libx11-dev libxcursor-dev libxinerama-dev build-essential gettext libtool libtool-bin libpulse-dev libasound2-dev libjack-dev portaudio19-dev
+    - name: Setup Vulkan
+      uses: ./.github/actions/vulkan
     - name: Build
       run: |
         ./PackageEditor.sh -arch=x64 -platform=Linux -deployOutput=Output
@@ -90,6 +96,8 @@ jobs:
         sudo cp -f .github/workflows/build_linux_sources.list /etc/apt/sources.list
         sudo apt-get update
         sudo apt-get install libx11-dev libxcursor-dev libxinerama-dev build-essential gettext libtool libtool-bin libpulse-dev libasound2-dev libjack-dev portaudio19-dev
+    - name: Setup Vulkan
+      uses: ./.github/actions/vulkan
     - name: Build
       run: |
         ./PackagePlatforms.sh -arch=x64 -platform=Linux -deployOutput=Output
@@ -98,3 +106,45 @@ jobs:
       with:
         name: Linux-Game
         path: Output/Linux.zip
+
+  # Mac
+  package-mac-editor:
+    name: Editor (Mac)
+    runs-on: "macos-latest"
+    steps:
+    - name: Checkout repo
+      uses: actions/checkout@v2
+    - name: Checkout LFS
+      run: |
+        git lfs version
+        git lfs pull
+    - name: Setup Vulkan
+      uses: ./.github/actions/vulkan
+    - name: Build
+      run: |
+        ./PackageEditor.command -arch=x64 -platform=Mac -deployOutput=Output
+    - name: Upload
+      uses: actions/upload-artifact@v2
+      with:
+        name: Mac-Editor
+        path: Output/FlaxEditorMac.zip
+  package-mac-game:
+    name: Game (Mac)
+    runs-on: "macos-latest"
+    steps:
+    - name: Checkout repo
+      uses: actions/checkout@v2
+    - name: Checkout LFS
+      run: |
+        git lfs version
+        git lfs pull
+    - name: Setup Vulkan
+      uses: ./.github/actions/vulkan
+    - name: Build
+      run: |
+        ./PackagePlatforms.command -arch=x64 -platform=Mac -deployOutput=Output
+    - name: Upload
+      uses: actions/upload-artifact@v2
+      with:
+        name: Mac-Game
+        path: Output/Mac.zip

.github/workflows/tests.yml

@@ -0,0 +1,38 @@
+name: Tests
+on: [push, pull_request]
+
+jobs:
+
+  # Tests
+  tests-linux:
+    name: Tests (Linux)
+    runs-on: "ubuntu-20.04"
+    steps:
+    - name: Checkout repo
+      uses: actions/checkout@v2
+    - name: Checkout LFS
+      run: |
+        git lfs version
+        git lfs pull
+    - name: Install dependencies
+      run: |
+        sudo rm -f /etc/apt/sources.list.d/*
+        sudo cp -f .github/workflows/build_linux_sources.list /etc/apt/sources.list
+        sudo apt-get update
+        sudo apt-get install libx11-dev libxcursor-dev libxinerama-dev build-essential gettext libtool libtool-bin libpulse-dev libasound2-dev libjack-dev portaudio19-dev
+    - name: Build
+      run: |
+        ./GenerateProjectFiles.sh -vs2019
+        ./Development/Scripts/Linux/CallBuildTool.sh -build -log -arch=x64 -platform=Linux -configuration=Development -buildtargets=FlaxTestsTarget
+        ./Development/Scripts/Linux/CallBuildTool.sh -build -log -arch=x64 -platform=Linux -configuration=Debug -buildtargets=FlaxEditor -BuildBindingsOnly
+        ./Development/Scripts/Linux/CallBuildTool.sh -build -log -arch=x64 -platform=Linux -configuration=Debug -buildtargets="FlaxEngine.Tests"
+        ./Development/Scripts/Linux/CallBuildTool.sh -build -log -arch=x64 -platform=Linux -configuration=Debug -buildtargets="Flax.Build.Tests"
+    - name: Test
+      run: |
+        Binaries/Editor/Linux/Development/FlaxTests
+        mono Source/Platforms/DotNet/NUnit/nunit3-console.exe Binaries/Tools/FlaxEngine.Tests.dll --framework=mono-4.0
+        mono Source/Platforms/DotNet/NUnit/nunit3-console.exe Binaries/Tools/Flax.Build.Tests.dll --framework=mono-4.0
+    - name: Test UseLargeWorlds
+      run: |
+        ./Development/Scripts/Linux/CallBuildTool.sh -build -log -arch=x64 -platform=Linux -configuration=Development -buildtargets=FlaxTestsTarget -UseLargeWorlds=true
+        Binaries/Editor/Linux/Development/FlaxTests

.gitignore

@@ -10,6 +10,8 @@ Source/*.csproj
 /Package_*/
 !Source/Engine/Debug
 /Source/Platforms/Editor/Linux/Mono/etc/mono/registry
+PackageEditor_Cert.bat
+PackagePlatforms_Cert.bat
 
 # User-specific files
 *.suo
@@ -19,6 +21,8 @@ Source/*.csproj
 *.tlog
 *.lastbuilddate
 *.opendb
+*.DS_Store
+*.xcodeproj
 
 # NUNIT
 *.VisualState.xml
@@ -146,5 +150,6 @@ bin/
 obj/
 *.vcxproj.filters
 .vscode/
+.idea/
 *.code-workspace
 

CODE_OF_CONDUCT.md

@@ -38,6 +38,12 @@ Instances of abusive, harassing, or otherwise unacceptable behavior may be repor
 
 Project maintainers who do not follow or enforce the Code of Conduct in good faith may face temporary or permanent repercussions as determined by other members of the project's leadership.
 
+## Contribution
+
+Using Flax source code is strictly governed by the Flax Engine End User License Agreement. If you don't agree to those terms, as amended from time to time, you are not permitted to access or use Flax Engine.
+
+We welcome any contributions to Flax Engine development through pull requests on GitHub. Most of our active development is in the master branch, so we prefer to take pull requests there (particularly for new features). We try to make sure that all new code adheres to the Flax coding standards. All contributions are governed by the terms of the [EULA](https://flaxengine.com/licensing/).
+
 ## Attribution
 
 This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4, available at [http://contributor-covenant.org/version/1/4][version]

Content/Editor/MaterialTemplates/Deformable.shader

@@ -374,4 +374,18 @@ void PS_Depth(PixelInput input)
 #endif
 }
 
+#if _PS_QuadOverdraw
+
+#include "./Flax/Editor/QuadOverdraw.hlsl"
+
+// Pixel Shader function for Quad Overdraw Pass (editor-only)
+[earlydepthstencil]
+META_PS(USE_EDITOR, FEATURE_LEVEL_SM5)
+void PS_QuadOverdraw(float4 svPos : SV_Position, uint primId : SV_PrimitiveID)
+{
+	DoQuadOverdraw(svPos, primId);
+}
+
+#endif
+
 @9

Content/Editor/MaterialTemplates/Features/DeferredShading.hlsl

@@ -25,7 +25,7 @@ void PS_GBuffer(
 #endif
 	)
 {
-	Light = 0;
+	Light = float4(0, 0, 0, 1);
 	
 #if USE_DITHERED_LOD_TRANSITION
 	// LOD masking

Content/Editor/MaterialTemplates/Features/ForwardShading.hlsl

@@ -6,6 +6,10 @@
 #include "./Flax/LightingCommon.hlsl"
 #if USE_REFLECTIONS
 #include "./Flax/ReflectionsCommon.hlsl"
+#define MATERIAL_REFLECTIONS_SSR 1
+#if MATERIAL_REFLECTIONS == MATERIAL_REFLECTIONS_SSR
+#include "./Flax/SSR.hlsl"
+#endif
 #endif
 #include "./Flax/Lighting.hlsl"
 #include "./Flax/ShadowsSampling.hlsl"
@@ -93,9 +97,34 @@ float4 PS_Forward(PixelInput input) : SV_Target0
 		light += GetLighting(ViewPos, localLight, gBuffer, shadowMask, true, isSpotLight);
 	}
 
-#if USE_REFLECTIONS
+	// Calculate lighting from Global Illumination
+#if USE_GI
+	light += GetGlobalIlluminationLighting(gBuffer);
+#endif
+
 	// Calculate reflections
-	light.rgb += GetEnvProbeLighting(ViewPos, EnvProbe, EnvironmentProbe, gBuffer) * light.a;	
+#if USE_REFLECTIONS
+	float3 reflections = SampleReflectionProbe(ViewPos, EnvProbe, EnvironmentProbe, gBuffer.WorldPos, gBuffer.Normal, gBuffer.Roughness).rgb;
+
+#if MATERIAL_REFLECTIONS == MATERIAL_REFLECTIONS_SSR
+	// Screen Space Reflections
+	Texture2D sceneDepthTexture = MATERIAL_REFLECTIONS_SSR_DEPTH; // Material Generator inserts depth and color buffers and plugs it via internal define
+	Texture2D sceneColorTexture = MATERIAL_REFLECTIONS_SSR_COLOR;
+	float2 screenUV = materialInput.SvPosition.xy * ScreenSize.zw;
+	float stepSize = ScreenSize.z; // 1 / screenWidth
+	float maxSamples = 48;
+	float worldAntiSelfOcclusionBias = 0.1f;
+	float brdfBias = 0.82f;
+	float drawDistance = 5000.0f;
+	float3 hit = TraceScreenSpaceReflection(screenUV, gBuffer, sceneDepthTexture, ViewPos, ViewMatrix, ViewProjectionMatrix, stepSize, maxSamples, false, 0.0f, worldAntiSelfOcclusionBias, brdfBias, drawDistance);
+	if (hit.z > 0)
+	{
+		float3 screenColor = sceneColorTexture.SampleLevel(SamplerPointClamp, hit.xy, 0).rgb;
+		reflections = lerp(reflections, screenColor, hit.z);
+	}
+#endif
+
+	light.rgb += reflections * GetReflectionSpecularLighting(ViewPos, gBuffer) * light.a;	
 #endif
 
 	// Add lighting (apply ambient occlusion)

Content/Editor/MaterialTemplates/Features/GlobalIllumination.hlsl

@@ -0,0 +1,23 @@
+// Copyright (c) 2012-2021 Wojciech Figat. All rights reserved.
+
+@0// Global Illumination: Defines
+#define USE_GI 1
+@1// Global Illumination: Includes
+#include "./Flax/GI/DDGI.hlsl"
+#include "./Flax/LightingCommon.hlsl"
+@2// Global Illumination: Constants
+DDGIData DDGI;
+@3// Global Illumination: Resources
+Texture2D<snorm float4> ProbesState : register(t__SRV__);
+Texture2D<float4> ProbesDistance : register(t__SRV__);
+Texture2D<float4> ProbesIrradiance : register(t__SRV__);
+@4// Global Illumination: Utilities
+float4 GetGlobalIlluminationLighting(GBufferSample gBuffer)
+{
+	float3 irradiance = SampleDDGIIrradiance(DDGI, ProbesState, ProbesDistance, ProbesIrradiance, gBuffer.WorldPos, gBuffer.Normal);
+	float3 diffuseColor = GetDiffuseColor(gBuffer);
+	float3 diffuse = Diffuse_Lambert(diffuseColor);
+	return float4(diffuse * irradiance, saturate(length(irradiance)));
+}
+
+@5// Global Illumination: Shaders

Content/Editor/MaterialTemplates/GPUParticles.shader

@@ -5,6 +5,7 @@
 #include "./Flax/Common.hlsl"
 #include "./Flax/GBufferCommon.hlsl"
 #include "./Flax/Matrix.hlsl"
+#include "./Flax/Noise.hlsl"
 @7
 // Primary constant buffer
 META_CB_BEGIN(0, Data)
@@ -62,68 +63,6 @@ float Rand(inout uint seed)
 	return asfloat((seed >> 9) | 0x3f800000) - 1.0f;
 }
 
-float4 Mod289(float4 x)
-{
-	return x - floor(x * (1.0 / 289.0)) * 289.0;
-}
-
-float4 Perm(float4 x)
-{
-	return Mod289(((x * 34.0) + 1.0) * x);
-}
-
-float Noise(float3 p)
-{
-    float3 a = floor(p);
-    float3 d = p - a;
-    d = d * d * (3.0 - 2.0 * d);
-	
-    float4 b = a.xxyy + float4(0.0, 1.0, 0.0, 1.0);
-    float4 k1 = Perm(b.xyxy);
-    float4 k2 = Perm(k1.xyxy + b.zzww);
-	
-    float4 c = k2 + a.zzzz;
-    float4 k3 = Perm(c);
-    float4 k4 = Perm(c + 1.0);
-	
-    float4 o1 = frac(k3 * (1.0 / 41.0));
-    float4 o2 = frac(k4 * (1.0 / 41.0));
-	
-    float4 o3 = o2 * d.z + o1 * (1.0 - d.z);
-    float2 o4 = o3.yw * d.x + o3.xz * (1.0 - d.x);
-	
-    return o4.y * d.y + o4.x * (1.0 - d.y);
-}
-
-float3 Noise3D(float3 p)
-{
-    float o = Noise(p);
-    float a = Noise(p + float3(0.0001f, 0.0f, 0.0f));
-    float b = Noise(p + float3(0.0f, 0.0001f, 0.0f));
-    float c = Noise(p + float3(0.0f, 0.0f, 0.0001f));
-
-    float3 grad = float3(o - a, o - b, o - c);
-    float3 other = abs(grad.zxy);
-    return normalize(cross(grad,other));
-}
-
-float3 Noise3D(float3 position, int octaves, float roughness)
-{
-	float weight = 0.0f;
-	float3 noise = float3(0.0, 0.0, 0.0);
-	float scale = 1.0f;
-	for (int i = 0; i < octaves; i++)
-	{
-		float curWeight = pow((1.0-((float)i / octaves)), lerp(2.0, 0.2, roughness));
-		
-		noise += Noise3D(position * scale) * curWeight;
-		weight += curWeight;
-		
-		scale *= 1.72531;
-	}
-	return noise / weight;
-}
-
 // Reprojects the world space position from the given UV and raw device depth
 float3 ReprojectPosition(float2 uv, float rawDepth)
 {

Content/Editor/MaterialTemplates/GUI.shader

@@ -19,6 +19,7 @@ float3 ViewDir;
 float TimeParam;
 float4 ViewInfo;
 float4 ScreenSize;
+float4 ViewSize;
 @1META_CB_END
 
 // Shader resources

Content/Editor/MaterialTemplates/Particle.shader

@@ -76,8 +76,8 @@ struct VertexOutput
 #if USE_CUSTOM_VERTEX_INTERPOLATORS
 	float4 CustomVSToPS[CUSTOM_VERTEX_INTERPOLATORS_COUNT] : TEXCOORD9;
 #endif
-	float3 InstanceOrigin    : TEXCOORD6;
-	float InstanceParams     : TEXCOORD7; // x-PerInstanceRandom
+	nointerpolation float3 InstanceOrigin : TEXCOORD6;
+	nointerpolation float InstanceParams : TEXCOORD7; // x-PerInstanceRandom
 };
 
 // Interpolants passed to the pixel shader
@@ -94,8 +94,8 @@ struct PixelInput
 #if USE_CUSTOM_VERTEX_INTERPOLATORS
 	float4 CustomVSToPS[CUSTOM_VERTEX_INTERPOLATORS_COUNT] : TEXCOORD9;
 #endif
-	float3 InstanceOrigin    : TEXCOORD6;
-	float InstanceParams     : TEXCOORD7; // x-PerInstanceRandom
+	nointerpolation float3 InstanceOrigin : TEXCOORD6;
+	nointerpolation float InstanceParams : TEXCOORD7; // x-PerInstanceRandom
 	bool IsFrontFace         : SV_IsFrontFace;
 };
 
@@ -694,4 +694,18 @@ void PS_Depth(PixelInput input)
 #endif
 }
 
+#if _PS_QuadOverdraw
+
+#include "./Flax/Editor/QuadOverdraw.hlsl"
+
+// Pixel Shader function for Quad Overdraw Pass (editor-only)
+[earlydepthstencil]
+META_PS(USE_EDITOR, FEATURE_LEVEL_SM5)
+void PS_QuadOverdraw(float4 svPos : SV_Position, uint primId : SV_PrimitiveID)
+{
+	DoQuadOverdraw(svPos, primId);
+}
+
+#endif
+
 @9

Content/Editor/MaterialTemplates/Surface.shader

@@ -14,6 +14,8 @@ float4x4 WorldMatrix;
 float4x4 ViewMatrix;
 float4x4 PrevViewProjectionMatrix;
 float4x4 PrevWorldMatrix;
+float4x4 MainViewProjectionMatrix;
+float4 MainScreenSize;
 float3 ViewPos;
 float ViewFar;
 float3 ViewDir;
@@ -43,8 +45,8 @@ struct GeometryData
 #endif
 	float3 WorldNormal : TEXCOORD3;
 	float4 WorldTangent : TEXCOORD4;
-	float3 InstanceOrigin : TEXCOORD5;
-	float2 InstanceParams : TEXCOORD6; // x-PerInstanceRandom, y-LODDitherFactor
+	nointerpolation float3 InstanceOrigin : TEXCOORD5;
+	nointerpolation float2 InstanceParams : TEXCOORD6; // x-PerInstanceRandom, y-LODDitherFactor
 	float3 PrevWorldPosition : TEXCOORD7;
 };
 
@@ -594,7 +596,7 @@ void ClipLODTransition(PixelInput input)
 // Pixel Shader function for Depth Pass
 META_PS(true, FEATURE_LEVEL_ES2)
 void PS_Depth(PixelInput input)
-{	
+{
 #if USE_DITHERED_LOD_TRANSITION
 	// LOD masking
 	ClipLODTransition(input);
@@ -615,4 +617,18 @@ void PS_Depth(PixelInput input)
 #endif
 }
 
+#if _PS_QuadOverdraw
+
+#include "./Flax/Editor/QuadOverdraw.hlsl"
+
+// Pixel Shader function for Quad Overdraw Pass (editor-only)
+[earlydepthstencil]
+META_PS(USE_EDITOR, FEATURE_LEVEL_SM5)
+void PS_QuadOverdraw(float4 svPos : SV_Position, uint primId : SV_PrimitiveID)
+{
+	DoQuadOverdraw(svPos, primId);
+}
+
+#endif
+
 @9

Content/Editor/MaterialTemplates/Terrain.shader

@@ -458,4 +458,18 @@ void PS_Depth(PixelInput input)
 #endif
 }
 
+#if _PS_QuadOverdraw
+
+#include "./Flax/Editor/QuadOverdraw.hlsl"
+
+// Pixel Shader function for Quad Overdraw Pass (editor-only)
+[earlydepthstencil]
+META_PS(USE_EDITOR, FEATURE_LEVEL_SM5)
+void PS_QuadOverdraw(float4 svPos : SV_Position, uint primId : SV_PrimitiveID)
+{
+	DoQuadOverdraw(svPos, primId);
+}
+
+#endif
+
 @9

Development/Documentation/mono.md

@@ -2,6 +2,8 @@
 
 Custom fork: [https://github.com/FlaxEngine/mono](https://github.com/FlaxEngine/mono) with custom features for C# assemblies hot-reloading at runtime without domain unload (more: [https://flaxengine.com/blog/flax-facts-16-scripts-hot-reload/](https://flaxengine.com/blog/flax-facts-16-scripts-hot-reload/)).
 
+Startup docs about building mono: [https://www.mono-project.com/docs/compiling-mono/](https://www.mono-project.com/docs/compiling-mono/)
+
 ### Notes
 
 Some useful notes and tips for devs: